Boiler cleaner and skimmer



2 Sheets-Sheet l s. A. PETERS Filed March ll, 1935 BOILER CLEANER ANDSKIMMER sept. 22, 1936.

SePt- 22, 1936 s. A. PETERS BOILER CLEANER AND SKIMMER Filed March ll,1935 2 Sheets-Shea?l 2 Patented Sept. 22, 1936' PATENT NoI-fFice nomiaCLEANER AND sKIMMEa Shafch A. Peters, Lake Charles, La., assigner, by lmesne assignments, to Mechanical Boiler Cleaner Co. Inc., New Orleans,La., a corpora-` tion of Louisiana Application March 1i, 1935, serialN0..1o,51o

s claims. (o1. 12a- 389)V The invention relates to boiler cleaners andskimmers, and has for its object to provide a device of this charactercomprising a scum conduit float supported within the boiler above thetubes -Y thereof and having a flexible connection with a skimmer lineextending through the wall of the boiler and valve controlled, andchambered members carried by the fioat and` skimmer conduit at `oppositesides thereof and into which skimmer;

'members foam andscum are forced during the circulation of the waterwithin the boiler.

A further object is to provide the skimmer conduit with upwardlyextending arms supporting the oppositely extending skimmer cups and todispose the floats between the skimmer cups and bracket connectionsbetween the floats and the` skimmer cups. Y

A further object is to taper or flare outwardly the skimmer cups wherebyscum will be gathered over a large surface of the water during thecirculation of water in the boiler.

With the above and other objects in view the invention resides in thecombination and arrangement of parts as hereinafter set forth, shown inthe drawings, described and claimed, it being understood that changes inthe precise embodiment of the invention may be made within the scope ofwhat is claimed without departing from the spirit of the invention.

In the drawings:

Figure 1 is a vertical longitudinal sectional view through aconventional form of boiler showing the device applied thereto.

Figure 2 is a perspective View of one of the skimmer elements.

Figure 3 is a vertical longitudinal sectional View through a portion ofone of the skimmer units.

Figure 4 is a bottom plan View of a portion of the conduit in the bottomof the boiler.

Figure 5 is a vertical longitudinal sectional view through a portion ofthe conduit in the bottom of the boiler.

Figure 6 is a horizontal sectional view taken on line 6-6 of Figure 1.

Figure 7 is a vertical transverse sectional view taken on line l-l ofFigure 1.

Figure 8 is a perspective view of a portion of the blow-out conduitsaround the i'lre box.

Figure 9 is a vertical transverse sectional view through one of theblow-out cups above the re box and a portion of the conduit.

Referring to the drawings, the numeral I designates a conventional formof boiler of the locomotive type, 2 the re box thereof and 3 the boilertubes, all of which is conventional structure. The

nre box 2 is supported on the usual mud ring 4 forming a chamber 5 belowthe re box and in which mud collects. Disposed Within the chamber 5 is arectangular portion tof the gathering or mud blow on" pipe, and throughwhich mud is forced by pressure within the boiler when the blow oi valvel is opened. Extending upwardly from one side of the blow oif pipeportion 6 is a pipe 8 having a flexible pipe connection 9 which connectsit to the gathering line AIll in the bottom of the boiler below theboiler tubes 3.

When it is desired to remove the mud from the bottom of the boilerchamber and from the endless chamber 5 beneath the fire box 2 theoperator opens the blow off valve 1 and as the steam Within the boilerabove the water line II will pass through the skimmer cup I2 the pipesI3 connecting the cups to the skimmer line I4 and the exible pipeconnection I5 between the skimmer line Ill and the mud gathering line I0in combination with the pressure within the boiler, mud will be forcedfrom the boiler by pressure within the boiler. By providing the exibleconnection I5 between the gathering line I0 and the skimmer pipe I4, itwill be seen that the skimmer cups I2 and line I4, which are floatcontrolled by means of the float I6, will be supported where the cupswill receive scum from the top of the water in the boiler as the watercirculates. When it is desired to skim the water within the boiler, theskimmer valve I'! is opened, which skimmer valve iscarried by thedischarge pipe I9 outside the boiler and extends into the boiler andterminates in a exible pipe connection 20, which connects it tol theskimmer line I4, therefore it will be seen there may be a skimmingoperation as well as a mud discharging operation from the bottom of theboiler either simultaneously or independently. Extending upwardly fromthe gathering line portion 6 are vertical pipes ZI which terminate inhorizontal pipes 22 disposed above the re box 2. The horizontal pipes 22are provided with downwardly extending and iiared siphon cups 23, whichterminate adjacent the in rectangular shaped portions 25 having chamberstherein and that the pipes I3 connect the portions 25 to the scum pipeline I4 for the passage of the scum and they also perform the functionof a supporting means for the scum cup, thereby obviating the use ofspecial supporting brackets for the cups.

y The gathering line I is built up from a plurality of members, whichmembers are designated by the numerals 26 and 2l. The members 26 areconnected together by the members 21 which are inthe form of nipples,the Lends of yvhich are threaded at 28 into the ends of the members 26.

with .downwardly extending lugs 30, which en" gagegthe bottom oftheboiler and maintain the gathering line upwardly spaced` therefrom,

s The flexible connections 9, I5 and 20 allow the pipes Vto accommodatethemselves to the parts of the boiler and to absorb any expansion orconvtraction which may` occur so that there will be no breakage of thepipes or repairs required. These flexible connections are also ofassistance in assembling and installing therapparatus.

,; From the aboveit will be seen that a boiler cleaning and skimmingdevice is provided which is simple in construction and one which may beeasily and quickly applied to a boiler. It will also be noted that theforward end of the boiler is provided with a clean out plate 3l whichplate may be removed when it is desired to have access to the gatheringline for repair purposes and that the removable clean out plate 3l isadjacent one end of theY gathering line; The invention having been setforth what is claimed as new and useful is:

1. A boiler skimmer comprising a skimmer line jadjacent the waterlevelin a boiler, upwardly extending pipes carr'ied by said skimmer line inspaced relation, float means between said upwardly extending pipes andgathering cups supported by said upwardly extending pipes at oppositesides ,of thefloats.

2. A boiler skimmer comprising a skimmer line,

upwardly extending spaced pipes carried by said skimmer line, a floatdisposed between said upwardly extending pipes and skimmer cups carriedby the upwardly extending pipes and forming a, connectionV between theupwardly extending pipes and the oat.

, 3. A device as set forth in claim 2 wherein the skimmercups areoutwardly flared and have their inner reduced ends connected to theupwardly extending pipes and the float.

SHAFCH A. PETERS.

